Second-harmonic generation in graded metallic films
نویسندگان
چکیده
منابع مشابه
Second-harmonic generation in graded metallic films.
We study the effective second-harmonic generation (SHG) susceptibility in graded metallic films by invoking the local field effects exactly and further numerically demonstrate that graded metallic films can serve as a novel optical material for producing a broad structure in both the linear and the SHG response and an enhancement in the SHG signal.
متن کاملSecond-harmonic generations in graded metallic films
We study the effective second-harmonic generation (SHG) susceptibility in graded metallic films by invoking the local field effects exactly, and further numerically demonstrate that the graded metallic films can serve as a novel optical material for producing a broad structure in both the linear and SHG response and an enhancement in the SHG signal. ocis: 160.4330, 310.6860, 160.4670, 160.4760.
متن کاملSecond-harmonic generation in graded metal–dielectric films of anisotropic particles
We investigate theoretically the effective second-harmonic generation (SHG) susceptibility in graded films of metal–dielectric random composites with anisotropically shaped particles by invoking the local field effects. Using numerical examples, we demonstrate that in the presence of gradation profiles and/or shape effects, graded metal–dielectric films could be used as novel optical materials ...
متن کاملEnhanced second-harmonic generation from individual metallic nanoapertures.
We demonstrate the ability of single-subwavelength-size nanoapertures fabricated in a gold metal thin film to enhance second-harmonic generation (SHG) as compared to a bare metal film. Nonlinear microscopy imaging with polarization resolution is used to quantify the SHG enhancement in circular and triangular nanoaperture shapes. The dependence of the measured SHG enhancement on circular apertur...
متن کاملOptical nonlinearity enhancement of graded metallic films
The effective linear and third-order nonlinear susceptibility of graded metallic films with weak nonlinearity have been investigated. Due to the simple geometry, we were able to derive exactly the local field inside the graded structures having a Drude dielectric gradation profile. We calculated the effective linear dielectric constant and third-order nonlinear susceptibility. We investigated t...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Optics Letters
سال: 2005
ISSN: 0146-9592,1539-4794
DOI: 10.1364/ol.30.000275